Device for analyzing crude oil composition

FIELD: oil industry.

SUBSTANCE: device comprises standard tank (1) transparent for visible and microwave radiation, microwave chamber (2) made of a rectangular hollow parallelepiped, source of microwave radiation (3), illuminator (4), TV camera (5), two solenoid-operated valves (6) and (7), weight pickup (8), measuring converter (9), electronic commutator (10), analogue-digital converter (11), interface (12), and computer (13). The walls of microwave chamber (2) are provided with holes (18)-(23) for introducing and recording the radiation from microwave source (3) and for filling and empting tank (1) with the crude oil. Standard tank (1) is formed by two straight hollow cylinders of different diameters. Illuminator (4) is made of a cylindrical luminescence arc-discharge lamp mounted inside the cylinder of smaller diameter so that the cylinder and standard tank are axially aligned. The cylinder is secured from outer side of bottom (17) and top (16) walls of microwave chamber (2). Solenoid-operated valves (6) and (7) are locked.

EFFECT: enhanced precision.

6 dwg

 

The technical solution relates to the oil industry, in particular to a device for analysis of the composition of crude oil in the technological process of production, gathering, treatment and transportation.

Device to implement the method (see U.S. Patent No. 5821406 "Method and system for measuring crude oil", G 01 N 33/26, 13.10.1998) contains a sampler and a hollow transparent cylindrical control tank divisions, mounted on the centrifuge.

Prototype technical solutions is a device for analyzing the composition of crude oil (see RF patent for utility model U 134253 EN 7 G 01 N 33/26, "Device for analyzing the composition of crude oil, No. 2003114691/20; Appl. 21.05.2003// Bulletin of the PULSE. 2003. No. 33), consisting of the control reservoir is transparent to microwave and visible radiation, working microwave camera, made in the form of a rectangular hollow parallelepiped, the source of microwave radiation, light, television transmitting camera, two solenoid valves, weight sensor, transducer, electronic switch, analog-to-digital Converter, interface, and computer. The illuminator is designed as a source of visible radiation, TV broadcasting camera, the first and second solenoid valves fixed on the outer side walls of the working microwave ka is a career accordingly rear, left, right, top and bottom. Control the tank as a straight hollow cylinder that is transparent to visible and microwave radiation and fixed bases on the inner side of the upper and lower walls of the working of the microwave chamber. In the walls of the working of the microwave chamber are made the proper entry opening of the microwave radiation source and illuminator, registration television transmitting camera passed through the check tank light, filling the breakdown of crude oil control tank and emptying, and the above blocks is fixed, and the corresponding holes are made so that the axis of the source of microwave radiation and corresponding apertures located coaxially with the axis of the Central cross-section of the control reservoir, the optical axis of the illuminator, television transmitting chamber and the axis of the corresponding technological holes are perpendicular to it, and the axis of both of the electromagnetic valves and the corresponding technological holes are coaxially to the main axis of the control tank. And the first solenoid valve is input and the second output control tank for sampling crude oil. The illuminator, the microwave source is th radiation, TV broadcasting camera and both electromagnetic valves are control inputs on/off switch, which are connected through the respective outputs of the interface with the computer, and the output of the television transmitting camera is connected to the input of analog-to-digital Converter.

The disadvantages of the prototype are low accuracy determine the percentage of a component of crude oil because of the strong illumination of the television transmitting camera caused by scattering on the walls of the control reservoir and the working of the microwave chamber and the low efficiency of the device due to the consistency of penetration depth between the separated components of crude oil in the test tank in the form of a straight hollow cylinder.

Solved in the invention technical problem - increasing the accuracy of analysis of the composition of crude oil and the efficiency of the device.

Solve the technical problem in the device for analysis of the composition of the crude oil containing the control reservoir is transparent to visible and microwave radiation, working microwave chamber made in the form of a rectangular hollow parallelepiped, a source of microwave radiation, the illuminator, television broadcasting camera, two electromagnetic valves, the weight sensor, the transmitter, e the trip switch, analog-to-digital Converter, the interface and the computer, and the control tank, fixed bases on the inner side of the upper and lower walls of the working of the microwave chamber, a weight sensor mounted on the outer side of the lower base of the control tank and the inner side of the bottom wall of the working of the microwave chamber, and a source of microwave radiation, TV broadcasting camera, the first and second solenoid valves fixed on the outer side walls of the working of the microwave chamber, respectively, rear, right, top and bottom, with the walls of the working of the microwave chamber are made corresponding apertures for entry of microwave radiation source, a Desk television transmitting camera passed through the control reservoir radiation illuminator, filling the breakdown of crude oil control tank and emptying, and the above blocks is fixed, and the corresponding holes are made so that the axis of the source of microwave radiation and the axis corresponding apertures are coaxially of the axis of the Central cross-section of the control reservoir, the optical axis of the television transmitting camera and the axis corresponding apertures are perpen tolarno the axis of the Central cross-section of the control tank, thus the output of the weight sensor connected to the input transducer, the output of which the output of the television transmitting cameras are connected respectively to the first and second signal inputs of the electronic switch, the address input through the respective outputs of the interface, and output through the analog-to-digital Converter and the corresponding inputs of the interface connected to the computer, the illuminator, the source of microwave radiation, TV broadcasting camera and both electromagnetic valves are control inputs on/off, which through the respective outputs of the interface connected to the computer, the first solenoid valve is input and the second output control tank for sampling crude oil, characterized in that the control tank is made in the form of a volume bounded by two straight hollow cylinders of different diameters, the illuminator is made in the form of a fluorescent lamp arc discharge cylindrical shape, is installed inside the cylinder of smaller diameter, so that its axis pine axis control tank, and fixed on the outer side of the lower and upper walls of the working microwave camera, and the electromagnetic valve is fixed, and the corresponding holes are made so that the axis of both electron gnity valve and the axis of the corresponding technological holes perpendicular to the concentric middle of a circle of the cross section of the control tank.

1 shows a structural diagram of a device for analyzing the composition of crude oil.

Figure 2 shows a sample of crude oil in the test tank when it is full.

Figure 3 shows the structure of the video output of the television transmitting camera corresponding to the sample of crude oil in the test tank when it is full.

Figure 4 shows the dependence of the weight of the sample of crude oil from the type of its emulsion state and the gas content in it, which is produced by determining a maximum sample weight of crude oil Rmax, weight of a sample of crude oil Rgasrequiring prior degassing, and the minimum sample weight of crude oil Rmin, under which options are defined operation.

Figure 5 shows the structure of a separated crude oil in the test tank when determining the percentage relationship of the components.

Figure 6 shows the structure of a video signal at the output of the television transmitting camera corresponding to the structure of the separated crude oil in the test tank when determining the percentage relationship of the components.

Device for analysis of the composition of crude oil (figure 1, 2, 3, 4, 5, 6) contains control tank 1, is transparent to visible and microwave radiation, working microwave chamber 2 made in the form of samogonnogo hollow parallelepiped, the source of microwave radiation 3, the illuminator 4, a television pickup camera 5, the two electromagnetic valves 6-7, weight sensor 8, the transmitter 9, the electronic switch 10, an analog-to-digital Converter 11, an interface 12 and a computer 13. Moreover, the control tank 1 is fixed bases on the inner side of the upper and lower walls of the working of the microwave chamber 2. The weight sensor 8 mounted on the outer side of the lower base of the control tank 1 and the inner side of the bottom wall of the working of the microwave chamber 2. The source of microwave radiation 3, TV broadcasting camera 5, the first 6 and second 7 solenoid valves fixed on the outer side walls of the working of the microwave chamber 2, respectively, the rear 14 right 15, top 16 and bottom 17. In the walls of the working of the microwave chamber 2 has corresponding apertures 18-23 input microwave radiation source 3, the registration of a television transmitting chamber 5 has passed through the control tank 1 radiation illuminator 4, filling the breakdown of crude oil control tank 1 and its emptying. Moreover, the above blocks is fixed, and the corresponding apertures 18-23 executed so that the axis 24 of the source of microwave radiation 3 and the axis 25 of the corresponding techno is oricheskogo holes 18 are coaxially to the axis 26 of the Central cross-section of the control tank, the optical axis 27 of the television transmitting chamber 5 and the axis 28 of the corresponding apertures 19 are perpendicular to the axis 26 of the Central cross-section of the control tank 1, and the output of the weight sensor 8 is connected to the input of the measuring transducer 9, the output of which the output of the television transmitting chamber 5 are connected respectively to the first and second signal inputs of the electronic switch 10, an address input through the respective outputs of the interface 12, and the output through the analog-to-digital Converter 11 and the corresponding inputs of the interface connected to the computer 13. The illuminator 4, the source of microwave radiation 3, TV broadcasting camera 5 and both electromagnetic valve 67 are the control inputs on/off, which through the respective outputs of the interface 12 is connected to the computer 13. While the first electromagnetic valve 6 is input, and the second 7 - access control tank 1 for sampling crude oil. Control the tank 1 is made in the form of a volume bounded by two straight hollow cylinders of different diameters. The illuminator 4 is made in the form of a fluorescent lamp arc discharge cylindrical shape, is installed inside the cylinder of smaller diameter, so that its axis 29 pine axis 30 of the control tank 1, and closed the prisoner on the outer side of the bottom 17 and the top 16 of the walls of the working of the microwave chamber 2, when this solenoid valves 6, 7 is attached, and the corresponding apertures 22, 23 are made so that the axes 31, 32 of both solenoid valves and the axis 33, 34 corresponding technological holes 22, 23 are perpendicular to the concentric middle of a circle of the cross section of the control tank 1.

The source of microwave radiation 3, corresponding technological hole 18 and a connection interface 12 shown in dashed lines, since these elements 3, 18 are located on the rear wall 14 of the working of the microwave chamber 2. Axis 24, 25 are shown in a projection perpendicular to the plane of figure 1.

Control the tank 1 is made of two cylinders, the diameters of which are chosen from the condition d1=(range 3.4-3.6 cm)+d2, where d1 is the outer diameter of the cylinder of the control tank 1, d2 is the diameter of the inner cylinder of the control tank 1. The difference between the diameters of 3.4-3.6 cm selected from conditions effective penetration of electromagnetic radiation in oil emulsion.

Figure 2 presents a sample of crude oil 35 within the control tank 1. Characteristic boundaries, necessary to determine the height of a column of samples of crude oil 35 filling control tank 1 are the lower boundary 36 of the control tank 1 and the upper boundary of the 37 samples of crude oil 35. For definition wide-angle the borders of the analyzed string image decomposition And television transmitting chamber 5, corresponding to the axis 30 of the control tank 1.

When filling in the control tank 1 breakdown of crude oil video line a-a that is parallel to the axis 30 of the control tank 1, obtained with the television transmitting chamber 5, are presented in figure 3. Characteristic changes of the video signal, essential for the operation of the device are changing its amplitude between the white level (UB) and black level (UCH) at the lower end 36 of the control tank 1 and the upper limit of 37 samples of crude oil 35. The sample of crude oil 35 is less transparent for the radiation of the light source 4 than empty space control tank 1, respectively, the amplitude of the signal at the upper limit of 37 samples of crude oil 35 is abruptly changed. The number of pixels in the image to define the boundaries are counted from the rear of the front line quenching pulse (STP), which in time coincides with the beginning of the image to the lower boundary 36 of the control tank 1. For her number corresponds to A0 and assumed to be 0. For the upper bound of 37 samples of crude oil 35 number isIn the computer sets the number of pixels to define the limits of the fill control tank 1-A(4/5)Vcorresponding to (4/5)V, and AVcorresponding to V, and the required volume of fill Avpost corresponding to Vpost.

Figure 4 shows the dependence of the weight of the sample of crude oil 35 from the type of its emulsion state and the gas content in it, which is the choice of operation. Crude oil in the sample 35 may be in the form of an emulsion of the type oil-in-water (from 1 to 50% oil) and water-in-oil" (from 50 to 99% oil) with the presence or absence of occluded gas. Essential to the operation of the device is the determination of the weight PCRsamples of crude oil 35 and comparing its value with the values embodied in the computer Rmax, Rgasand Rmin. Pmaxcorresponds to a maximum weight of non-carbonated samples of crude oil 35 and is determined by the presence of the emulsion of the type oil-in-water with 1%oil content. Pgascorresponds to the weight of non-carbonated samples of crude oil 35 in the presence of the emulsion Tina "oil in water or water in oil at 50%oil content. In the case of occluded gas weight samples of crude oil 35 is not less than the value of Pgaswhen gas L lying in the range from 0 to L1 for specific values of emulsions of the type oil-in-water. For emulsions of the type oil-in-water or water-in-oil" it is possible that Rgas≥PCR>Rminbut gas content does not exceed L1 (shaded area). This should CCA is about to be considered when choosing options for the operation of the device. Pmincorresponds to the weight of the sample of crude oil 35, wherein the analysis of its composition is completed, since the inclusion of the source of microwave radiation 3 in this case is invalid because of its possible failure. Typically, Rminis determined by the requirements of the source of microwave radiation 3.

Figure 5 presents the structure of the separated crude oil within the control tank 1 after treatment by radiation from the source of microwave radiation 3. At the bottom of the control tank 1 is a residue 38, 39 and above the water oil 40. Characteristic boundaries, necessary for analysis of the composition of crude oil, are the lower boundary 41 of the control tank 1, the boundary "sediment-water 42, the boundary of the section "water-oil" 43, the upper boundary of the separated oil 44. To determine the boundaries of the parsed string decomposition of the image And corresponding to the axis 30 of the control tank 1.

When determining the percentage of crude oil components of the video signal line a-a that is parallel to axis 30 of the control tank 1, obtained with the television transmitting chamber 5, is presented on Fig.6. Characteristic changes of the video signal, essential for the operation of the device are changing its amplitude between the white level (UB) and black level (UCH) on the boundary R is sdela various components of crude oil. Residue 38 and pure oil 40 less transparent for the radiation of the light source 4, the water 39, respectively, the amplitude of the video signal PA the environment boundaries will abruptly change. Characteristic changes in the amplitude correspond to the lower boundary 41 of the control tank 1, the boundary "sediment-water 42, the boundary of the section "water-oil" 43 and the upper boundary of the separated oil 44. The number of pixels in the image to define the boundaries are counted from the rear of the front line quenching pulse (STP), which in time coincides with the beginning of the image to the lower boundary 41 of the control tank 1. For her number corresponds to A0 and assumed to be 0. The boundary between "sediment-water" 42 a number equal to A1, the boundary between "water-oil" number 43 is equal to A2, for the upper bound of the separated oil 44 number is A3.

Consider the operation of the device for analysis of the composition of crude oil.

To populate the control tank 1 breakdown of crude oil 35 from the computer 13 via the interface 12 command control switching of the first electromagnetic valve 6. The algorithm of the control computer 13 the work of individual units of the device are presented in Appendix 1 (see the end of the description).

Filling control tank 1 breakdown of crude oil 35 presented in figure 2, from the pipeline or vessel, which may nahoditsya oil, is within 4/5≤VCR/V<1. These limits are selected on the basis of the high accuracy of the analysis, hit the analyzed samples of crude oil 35 and entire control of the tank 1 in the field of view of the television transmitting chamber 5 and the inability transfusion control tank 1 when filling. However, the filling control tank 1 within the specified limits, determined only by the filling time, at a variable flow rate of crude oil 35 can cause the difference in size and weight between the samples in the neighboring measurements. Then either a big test for the selected mode of separation by microwave radiation cannot fully be separated into components, or a smaller sample may be overheated, causing it to boiling and stirring. In both cases, the accuracy of the analysis of the composition of crude oil is not high. Therefore, the filling control tank 1 breakdown of crude oil 35 is carried out until a constant value of VCR=Vpost.

For this purpose, during the filling of the control tank 1 advanced light rays from the illuminator 4, register the intensity transmitted through the control tank 1 radiation television method by registering television transmitting camera 5 video line image that is located along the axis 30 of the control is on the tank 1. To do this, the computer 13 via the interface 12 serves to control commands enable illuminator 4 and television transmitting chamber 5, and also command on the address input of the electronic switch 10 to connect to the input of the analog-to-digital Converter 11 outputs of the television transmitting chamber 5. The structure of the video signal obtained from a television transmitting chamber 5 and the corresponding sample of crude oil 35 filling control tank 1 shown in figure 2, is shown in figure 3.

Next, determine the filling volume VCRcontrol tank 1 breakdown of crude oil 35 and the moment they reach values of Vpostaccording to the algorithm described in Appendix 2 (see the end of the description). First, the amplitude of the digitized in analog-to-digital Converter 11 and transmitted via the interface 12 to the PC 13 video define the lower boundary 36 of the control tank 1 and the upper boundary of the 37 samples of crude oil 35 as the number of the corresponding pixels of the video signal, respectively, A0 and

Characteristic changes of the video signal, essential for the operation of the device are changing its amplitude between the white level (UB) and the level chernow (UCH) at the lower end 36 of the control tank 1 and the upper limit of 37 samples of crude oil 35. The sample of crude oil 35 less than prozracna for radiation illuminator 4, than empty space control tank 1, respectively, the amplitude of the signal at the upper limit of 37 samples of crude oil 35 is abruptly changed. All the length of the string divided by the number of pixels within it. The number of pixels in the image to define the boundaries are counted from the rear of the front line quenching pulse (STP), which in time coincides with the beginning of the image to the lower boundary 36 of the control tank 1. For her number corresponds to AO and assumed to be 0. When analyzing the video signal is determined by the number of pixelsin which there was a jump in the amplitude of the signal at the upper limit of 37 samples of crude oil 35.

In the computer 13 sets the number of pixels to define the limits of the fill control tank 1-A(4/5)Vcorresponding to (4/5)V, and AVcorresponding to V, and the required volume of fillcorresponding to Vpost. When performing equalityand conditionsfilling control tank 1 breakdown of crude oil 35 complete, what with the computer 13 via the interface 12 serves the shutdown command first electromagnetic valve 6.

Next, determine the weight of PCRsamples of crude oil 35, filled pin is Aulnay tank 1 to volume V post. To do this, the computer 13 via the interface 12 the command to the address input of the electronic switch 10 to connect to the analog-to-digital Converter 11 output transducer 9, the inlet of which is connected to the weight sensor 8.

The choice of operation of the device is the measured weight of PCRand values of Pmax, Rgasand Rminpreviously incorporated in the computer 13, the algorithm presented in Annex 3 (see end of description).

The choice of the values of Rmax, Rgasand Rmincan be based, is shown in figure 4. Crude oil in the sample 35 may be in the form of an emulsion of the type oil-in-water (from 1 to 50% oil) and water-in-oil" (from 50 to 99% oil) with the presence or absence of occluded gas. Pmaxcorresponds to a maximum weight of non-carbonated samples of crude oil 35 and is determined by the presence of the emulsion of the type oil-in-water with 1%oil content Rgascorresponds to the weight of non-carbonated samples of crude oil 35 in the presence of the emulsion of the type oil-in-water or water-in-oil at 50%oil content. In the case of occluded gas weight samples of crude oil 35 is not less than the value of Pgaswhen gas L lying in the range from 0 to L1 for specific values of the emulsion type "n is ft in the water". For emulsions of the type oil-in-water or water-in-oil" it is possible that Rgas≥PCR>Rminbut gas content does not exceed L1 (shaded area). This will be particularly taken into account in the choice of operation. Pmincorresponds to the weight of the sample of crude oil 35, wherein the analysis of its composition is stopped, since the inclusion of the source of microwave radiation 3 in this case is invalid because of its possible failure. Typically, Rminis determined by the requirements of the source of microwave radiation 3.

For example, consider the analysis of the weight of samples for crude oil Romashkinskoye field. The Republic of Tatarstan (the data for calculation are taken from the book Baikov NM, Pozdnyshev G.N., Mansurov RI. Collection and field processing of oil, gas and water", M.: Nedra, 1981).

For the emulsion of crude oil density is calculated from the additivity rule by the formula

ρen(1-ϕin)+ρin(1-ϕn),

where ϕ is the volume fraction of the dispersed phase ϕinin/(νnin), ϕnn/(νnin), ρethat ρinthat ρnrespectively the density of the emulsion system, water and pure oil, kg/m

For gas-saturated oil emulsion with eno is Noah precision density of the system calculated by the formula

ρcme(1-L)+Lρg,

where ρgthe density of the gas L - gas content.

In addition, the proportion of sediment in crude oil samples is negligible, and we will not take it into account in these calculations.

For Romashkinskoye field ρn≈800 kg/m3that ρin≈1200 kg/m3that ρg≈2 kg/m3. Then for the filling volumes of the control tank 1 V=0,5 DM3, Rmaxwill be determined by weight 0.6 kg, Pgas-0,5 kg and Pmin-0,2 kg (magnetron source of microwave radiation). The value of gas content in L1 will be 10%, which provides high accuracy determine the percentage of oil component, since in the presence of occluded gas to 10% emulsion rashaida microwave separation. In the case of occluded gas with a share greater of 10%, high precision determine the percentage of a component of crude oil can be achieved through preliminary degassing.

If Rmax≥PCR>Rgaspass to separation of samples of crude oil 35, completing the control tank 1, components - sediment, water, oil, irradiating it with radiation from the source of microwave radiation 3. To do this, the computer 13 via the interface 12 command control vklyuchayuschaya microwave radiation 3. Separation of crude oil components occurs under the action of gravitational forces, accelerated by the influence of microwave radiation on the weakening of the intermolecular bonds of the oil and water at temperatures of 60-90°C. the duration of the enable and mode of operation of the source of microwave radiation 3 are determined by the volume control tank 1, the type of oil and its initial temperature. As a result of separation in the control tank 1 forms the structure of the separated oil, shown in figure 5.

Next, the control tank 1 light and television method register the intensity transmitted through the control tank 1 visible radiation in the form of a video signal line image that is located along the axis 30 of the control tank 1 side, the opposite side lighting. To do this, the computer 13 via the interface 12 serves to control commands enable illuminator 4 and television transmitting chamber 5, and also command on the address input of the electronic switch 10 to connect to the input of the analog-to-digital Converter 11 outputs of the television transmitting chamber 5. The structure of the video signal obtained from a television transmitting chamber 5 and the corresponding structure of the separated oil is shown in figure 5, is shown in Fig.6.

Next, determine the percentage of the components is tov crude oil according to the algorithm, in Appendix 4 (see end of description). First, the amplitude of the digitized in analog-to-digital Converter 11 and transmitted via the interface 12 to the PC 13 video define the lower boundary 41 of the control tank 1, the boundary between "sediment-water" 42 and "water-oil" 43, the upper limit of the separated oil 44 as the number of corresponding pixels of the video signal, respectively, A0, A1, A2, A3.

Characteristic changes of the video signal are changes its amplitude between the white level (UB) and black level (UCH) for the interfaces of the various components of crude oil. Residue 38 and oil 40 less transparent for the radiation of the light source 4, the water 39, respectively, the amplitude of the video signal on the environment boundaries will abruptly change. Characteristic changes in the amplitude correspond to the lower boundary 41 of the control tank 1, the boundary sediment-water 42, the border of the "water-oil" 43 and the upper boundary of the separated oil 44. The number of pixels in the image to define the boundaries are counted from the rear of the front line quenching pulse (TIS), which in time coincides with the beginning of the image to the lower boundary of the control tank 1 and is 0. All the length of the string divided by the number of pixels within it. When analyzing the video signal is determined by the number of pixels, W is happened leap amplitude of the video signal on the boundary component of oil. Suppose that in our example, this corresponds to:

the lower boundary of the control reservoir 41 - A0=0;

the boundary "sediment-water 42 - A1=40;

the boundary of the section "water-oil" 43 - A2=160;

the upper boundary of the separated oil 44 - A3=360.

Next, calculate the difference between the numbers of pixels to determine the height of the pillars, respectively 38 sediment, water 39 and pure oil 40, referred to the full height of the column of the separated oil.

In our example, this corresponds to:

sediment - (A1-A0)/(A3-A0)=40/360=0,11;

water - (A2-A1)/(A3-A0)=120/360=0,33;

net oil - (A3-A2)/(A3-A0)=200/360=0,56.

Then, the quantitative ratio of component of crude oil is equal to

11%:33%:56% (sediment:water:oil).

In conclusion, a sample of crude oil is drained through the second electromagnetic valve 7, which at its control input serves on command from the computer 13 via the interface 12. Activation time of the second electromagnetic valve 7 is determined by the duration of the complete emptying of the control tank 1.

If Rmax<PCR≤Pminanalysis of the composition of the sample of crude oil 35 complete, for which the second solenoid valve 7 serves the on command from the computer 13 via the interface 12 and void control tank 1. Case RCR≤Pminas mentioned above, can lead to failure of the East is cnica microwave radiation 3 (version of work for unmatched load, requirements source of microwave radiation, for example a magnetron, minimum load). Case Rmax<PCRtalks about the hit in the control tank 1 components different from oil, water and sludge, which can also lead to failure of the source of microwave radiation 3. In addition, this fact can be used as signaling the presence of the pipeline foreign phone

If Pgas≥PCR>Rmina sample of crude oil 35 pre rangatira, briefly irradiating it with microwave radiation. To do this, the computer 13 via the interface 12 command activation control of the source of microwave radiation 3. The degassing of crude oil occurs under the influence of microwave radiation on the weakening of the intermolecular bonds of gas and water, gas and oil. The duration of the enable and mode of operation of the source of microwave radiation 3 are determined by the volume control tank 1, the type of oil, the weight of the sample and its initial temperature. When this is selected the duration and mode of operation is significantly less than those needed for the separation of samples of crude oil 35, which was discussed above.

Then define VCR. If after degassing the volume change of the sample of crude oil 35 satisfy the condition VCR≥ 0,9Vpostpass to separation of samples of crude oil components. This can happen for crude oil in the form of emulsions of the type oil-in-water or water-in-oil", when Rgas≥PCR>Rminbut the gas does not exceed 10% (hatched area in figure 4). If VCR<0,9Vpostthe control tank 1 Supplement crude oil to the value of Vpostafter that again to determine the weight of the sample RCRand compare the resulting value with the preset in the computer 13 values of RmaxPgasand Rmin.

For the implementation of the device for analysis of the composition of the crude oil can be used:

- illuminator 4 - fluorescent lamp arc discharge cylindrical shape, the capacity of which is selected as the adequacy of lighting control tank 1;

- working microwave chamber 2 and the source of microwave radiation 3 - microwave electronics - SP - moreover, the enterprise with the magnetron M-136;

- TV broadcasting camera 5 - monoplace company Kodak with a resolution of 360*480 pixels;

the first 6 and second 7 solenoid valves - gate EMW-and 43C Do 15-220/27 (Penza);

interface 12 - modernized the control unit and the time intervals microwave electronics - SP - moreover, the enterprise;

- PC 13 PC at 386 (or higher) or any specialized microcontroller;

- Datca is weight 8 - the wire strain gauge (DMS AT (NIIF, Moscow);

- measuring transducer 9 - bridge device processing analog signals on the load cell CMJ firm Scaime;

the electronic switch 10 on the basis of an integrated circuit series 590 (KN, KN).

Compared with the prototype using the control tank in the form of a volume bounded by two straight hollow cylinders of different diameters, helped to coordinate the penetration depth between the separated components of the sample of crude oil and increased the speed of separation ≈ 1.2÷1.5 times in comparison with the prototype.

The performance of the illuminator in the form of a fluorescent lamp arc discharge cylindrical possible to increase the uniformity of the illumination control of the tank and placing it inside a cylinder of smaller diameter gave the opportunity to get rid of clipping caused by scattering on the walls of the control reservoir and the working of the microwave chamber.

The testing of the prototype device has shown that the filling of the control tank is made in the form of a volume bounded by two straight hollow cylinders of different diameters, the determination of sample weight and the availability of the crude oil occluded gas, using pre-degassing and rejection of samples but the weight, the quality of the ve backlight illuminator, made in the form of a fluorescent lamp arc discharge cylindrical shape, operating in the visible range of electromagnetic wavelengths that is installed inside a cylinder of smaller diameter, in addition to the advantages of microwave separation and television measurement methods has improved the accuracy and efficiency of the device for analysis of the composition of crude oil compared with the prototype and laboratory devices used in the practice of the oil industry.

Device for analyzing the composition of the crude oil containing the control reservoir is transparent to visible and microwave radiation, working microwave chamber made in the form of a rectangular hollow parallelepiped, a source of microwave radiation, the illuminator, television broadcasting camera, two electromagnetic valves, the weight sensor, the transmitter, electronic switch, analog-to-digital Converter, the interface and the computer, and the control tank fixed bases on the inner side of the upper and lower walls of the working of the microwave chamber, a weight sensor mounted on the outer side of the lower base of the control tank and the inner side of the bottom wall of the working of the microwave chamber, and a source of microwave radiation TV is transmitting camera, the first and second solenoid valves fixed on the outer side walls of the working of the microwave chamber, respectively, rear, right, top and bottom, with the walls of the working of the microwave chamber are made corresponding apertures for entry of microwave radiation source, a Desk television transmitting camera passed through the control reservoir radiation illuminator, filling the breakdown of crude oil control tank and emptying, and the above blocks is fixed, and the corresponding holes are made so that the axis of the source of microwave radiation and the axis corresponding apertures are coaxially of the axis of the Central cross-section of the control reservoir, the optical axis of the television transmitting camera and the axis corresponding apertures are perpendicular to the axis of the Central cross-section of the control tank, while the output of the weight sensor connected to the input transducer, the output of which the output of the television transmitting cameras are connected respectively to the first and second signal inputs of the electronic switch, the address input through the respective outputs of the interface, and output through the analog-to-digital Converter is running, and the corresponding inputs of the interface connected to the computer, the illuminator, the source of microwave radiation, TV broadcasting camera and both electromagnetic valves are control inputs on/off, which through the respective outputs of the interface connected to the computer, the first solenoid valve is input and the second output control tank for sampling crude oil, characterized in that the control tank is made in the form of a volume bounded by two straight hollow cylinders of different diameters, the illuminator is made in the form of a fluorescent lamp arc discharge cylindrical shape, is installed inside the cylinder of smaller diameter so that its axis coaxial to the axis of the control tank, and fixed on the outer side of the lower and upper walls of the working microwave camera, and the electromagnetic valve is fixed, and the corresponding holes are made so that the axis of both of the electromagnetic valves and the axis of the corresponding technological holes perpendicular to the concentric middle of a circle of the cross section of the control tank.



 

Same patents:

FIELD: measuring technique.

SUBSTANCE: method comprises steps of introducing analyzed sample in measuring cell 4 placed into cryostat-provided chamber 1; turning on laser irradiator 6 and corresponding to it optical detector 7 for passing optical beam through analyzed sample; storing intensity values of light received by optical detector 7; gradually lowering temperature in chamber 1 and then again increasing it for registering curve showing change of intensity values of light received by detector 7 as temperature function. According to registered curve crystal disappearance point is determined.

EFFECT: enhanced accuracy and reliability of measurement results.

7 cl, 4 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention can be used for estimating contamination of diesel oil with particles of soot for replacement of oil in due time. Level of oil contamination is estimated by change of intensity of optical radiation passing through optical rod owing to complete internal reflection on interface of sensitive cylindrical surface - oil. Change of intensity is measured caused both by change of absorption in layer of penetration of radiation into oil and change of refraction index of oil at increase of concentration of soot particles in oil. Optical rod is made of optical material whose refraction index of which is greater than refraction index of engine oil under testing, ratio of length of rod to its diameter being not less than 10:1. first end face of rod square to optical axis is in contact with source and receiver of optical radiation, and second end face of rod square to optical axis is provided with reflecting mirror coating. Cleaning of sensitive surface of optical element is done by means of electrostatic field. Concentration of soot particles in oil is evaluated basing on change of measured signal relative to signal received at testing of clean oil with use of calibration relationship.

EFFECT: provision of high accuracy and reliability of evaluation of contamination of diesel oil with particles and replacement of contaminated oil in due time.

11 dwg

FIELD: power engineering.

SUBSTANCE: method involves 1) measuring n physical properties φi of given gas mixture at temperature T and/or single physical property φi at n different temperature values; 2) determining gas composition comprising n+1 ingredients on basis of mentioned physical properties, that is to be equivalent to the given gas mixture; 3) deducing power properties of the given mixture from given known composition of the equivalent gas.

EFFECT: simplified method; higher information capacity of property definition.

12 cl, 3 dwg, 1 tbl

FIELD: technology for diagnosing status of motor oil, possible use for determining quality of motor oil during operation and its fitness for further use.

SUBSTANCE: in accordance to method for determining content of liquid in motor oil, motor oil is heated up and by intensiveness of characteristic air bubbles, presence of liquid is evaluated, while firstly a template made of wire in form of mesh is applied to crucible of Cleveland machine, heated up with heating speed 6°C per 1 min up to 100°C, in range of temperatures 120-140°C heating is decreased down to 2°C per 1 minute, then position of cells in contour, formed by air bubbles in template, is visually memorized, further, contour is transferred over a squared paper, by squares, value of area of contour surface is calculated by its value, percentage of liquid is determined using standard depending on base for motor oil.

EFFECT: increased precision of detection of presence of cooling liquid in oils and its percentage.

3 tbl, 2 dwg

FIELD: measurement engineering.

SUBSTANCE: method and device can be used in systems for survey, transportation and preparation of oil. Continuous and simultaneous measurement of volumetric discharge Q1 and Q2 is performed in two points standing apart along flow travel in pipeline; the measurements are carried out by means of two flowmeters. Behind the first point Q1, the local hydrodynamic disturbance is generated in flow by means of expansion of cross-section of flow. Second measurement is carried out at expanded part of flow. Availability of gas is judged from excess in setting relatively current values Q1 and Q2, which value is specified in controller to which controller the both flowmeters are connected. Device for realization of the method is made in form of insertion n the pipeline.

EFFECT: improved reliability of measurement.

2 cl, 1 dwg

FIELD: lubricants.

SUBSTANCE: invention relates to the field of testing petroleum derivatives, in particular to testing hygroscopicity of aviation synthetic oils, and can be utilized in institutions engaged in development and application of lubricating oils for aircraft techniques and for estimating changes in quality conditions of aviation synthetic oils from tendency of oils to water absorption under operation conditions. In a method of estimating hygroscopicity of oils from amount of absorbed water, including sampling oil, keeping sample at specified relative humidity and temperature in presence of distilled water, and then calculating amount of absorbed water using thus obtained dependence, additionally calculating content of water in initial sample (C0), specifying keeping time (t) for sample of oil at specified relative humidity and temperature, and calculating amount of absorbed water (C1) in oil sample from mathematic dependence taking into consideration experimentally found maximum water solubility constant (Cmax) and constant coefficient (ka) for particular kinds of aviation synthetic oils.

EFFECT: reduced determination time and labor expenditure for determination, increased sensitivity of method under oil operation conditions without losses in accuracy and reproducibility.

1 dwg, 3 tbl

FIELD: analytical methods.

SUBSTANCE: invention is intended for use as a means of metrologically supporting measurement techniques in determination of total alkaline number of motor oils and lubricating materials. This means is represented by composition containing 75-84% liquid hydrocarbons, 0.05-6% water-soluble alkali component, and 15-20% aliphatic alcohol. Use of standard specimen allows performing reliable estimation of quality of motor oils and lubricating materials by accessible acid-base titration technique requiring no special instrumentation equipment.

EFFECT: simplified analytical procedure.

1 tbl

FIELD: chemical industry; petrochemical industry; analysis of the materials by the chemical methods.

SUBSTANCE: the invention is pertaining to the field of analysis of the materials by the chemical methods (by titration, with utilization of chemical indicators), containing the organic compounds of magnesium and may be used in chemical and a petrochemical industry at exercising control over the quality of petroleum. The invention provides, that magnesium chloride from the oil test is produced by impregnation of the ash-free filter with the tested oil with its subsequent incineration up to the complete ashing. Then the ash is dissolved in 30-40 cm3 of the weak 6 Mole/dm3 solution of hydrochloric acid. The produced solution id boiled within 15-20 minutes, transferred by a spray of the distilled water into the graduated flask. Take the aliquot, in which add the distilled water and neutralize it with ammonia (dropwise) up to pH=10.0, introduce the ammoniacal buffered solution and the indicating device the chromogen black ЕТ-100 and titrate 0.025 Mole/cm3 with the B-trilonum solution till the change of the a crimson-violet color into blue- pale blue, and quantity of magnesium (in mass%), is determined by the empirical formula. The invention allows to reduce the time duration for determination of the contents of magnesium, to improve the labor conditions due to exclusion from the process of the toxic and flammable benzole without reduction of requirements on toxicity and reliability of the produced results.

EFFECT: the invention ensures reduction of the time for determination of the contents of magnesium, improvement of the labor conditions, exclusion from the process of the toxic and flammable benzole without reduction of requirements to toxicity and reliability of the produced results.

2 tbl

The invention relates to performance management and monitoring of dosage, and in particular to methods and control of oil and petrochemical products through chemical processing, as well as to methods for operational use of sensors based on quartz crystal microbalance

The invention relates to the analysis of lubricating oils with alkaline additives, namely, to determine conditionnot oils

FIELD: chemical industry; petrochemical industry; analysis of the materials by the chemical methods.

SUBSTANCE: the invention is pertaining to the field of analysis of the materials by the chemical methods (by titration, with utilization of chemical indicators), containing the organic compounds of magnesium and may be used in chemical and a petrochemical industry at exercising control over the quality of petroleum. The invention provides, that magnesium chloride from the oil test is produced by impregnation of the ash-free filter with the tested oil with its subsequent incineration up to the complete ashing. Then the ash is dissolved in 30-40 cm3 of the weak 6 Mole/dm3 solution of hydrochloric acid. The produced solution id boiled within 15-20 minutes, transferred by a spray of the distilled water into the graduated flask. Take the aliquot, in which add the distilled water and neutralize it with ammonia (dropwise) up to pH=10.0, introduce the ammoniacal buffered solution and the indicating device the chromogen black ЕТ-100 and titrate 0.025 Mole/cm3 with the B-trilonum solution till the change of the a crimson-violet color into blue- pale blue, and quantity of magnesium (in mass%), is determined by the empirical formula. The invention allows to reduce the time duration for determination of the contents of magnesium, to improve the labor conditions due to exclusion from the process of the toxic and flammable benzole without reduction of requirements on toxicity and reliability of the produced results.

EFFECT: the invention ensures reduction of the time for determination of the contents of magnesium, improvement of the labor conditions, exclusion from the process of the toxic and flammable benzole without reduction of requirements to toxicity and reliability of the produced results.

2 tbl

FIELD: analytical methods.

SUBSTANCE: invention is intended for use as a means of metrologically supporting measurement techniques in determination of total alkaline number of motor oils and lubricating materials. This means is represented by composition containing 75-84% liquid hydrocarbons, 0.05-6% water-soluble alkali component, and 15-20% aliphatic alcohol. Use of standard specimen allows performing reliable estimation of quality of motor oils and lubricating materials by accessible acid-base titration technique requiring no special instrumentation equipment.

EFFECT: simplified analytical procedure.

1 tbl

FIELD: lubricants.

SUBSTANCE: invention relates to the field of testing petroleum derivatives, in particular to testing hygroscopicity of aviation synthetic oils, and can be utilized in institutions engaged in development and application of lubricating oils for aircraft techniques and for estimating changes in quality conditions of aviation synthetic oils from tendency of oils to water absorption under operation conditions. In a method of estimating hygroscopicity of oils from amount of absorbed water, including sampling oil, keeping sample at specified relative humidity and temperature in presence of distilled water, and then calculating amount of absorbed water using thus obtained dependence, additionally calculating content of water in initial sample (C0), specifying keeping time (t) for sample of oil at specified relative humidity and temperature, and calculating amount of absorbed water (C1) in oil sample from mathematic dependence taking into consideration experimentally found maximum water solubility constant (Cmax) and constant coefficient (ka) for particular kinds of aviation synthetic oils.

EFFECT: reduced determination time and labor expenditure for determination, increased sensitivity of method under oil operation conditions without losses in accuracy and reproducibility.

1 dwg, 3 tbl

FIELD: measurement engineering.

SUBSTANCE: method and device can be used in systems for survey, transportation and preparation of oil. Continuous and simultaneous measurement of volumetric discharge Q1 and Q2 is performed in two points standing apart along flow travel in pipeline; the measurements are carried out by means of two flowmeters. Behind the first point Q1, the local hydrodynamic disturbance is generated in flow by means of expansion of cross-section of flow. Second measurement is carried out at expanded part of flow. Availability of gas is judged from excess in setting relatively current values Q1 and Q2, which value is specified in controller to which controller the both flowmeters are connected. Device for realization of the method is made in form of insertion n the pipeline.

EFFECT: improved reliability of measurement.

2 cl, 1 dwg

FIELD: technology for diagnosing status of motor oil, possible use for determining quality of motor oil during operation and its fitness for further use.

SUBSTANCE: in accordance to method for determining content of liquid in motor oil, motor oil is heated up and by intensiveness of characteristic air bubbles, presence of liquid is evaluated, while firstly a template made of wire in form of mesh is applied to crucible of Cleveland machine, heated up with heating speed 6°C per 1 min up to 100°C, in range of temperatures 120-140°C heating is decreased down to 2°C per 1 minute, then position of cells in contour, formed by air bubbles in template, is visually memorized, further, contour is transferred over a squared paper, by squares, value of area of contour surface is calculated by its value, percentage of liquid is determined using standard depending on base for motor oil.

EFFECT: increased precision of detection of presence of cooling liquid in oils and its percentage.

3 tbl, 2 dwg

FIELD: power engineering.

SUBSTANCE: method involves 1) measuring n physical properties φi of given gas mixture at temperature T and/or single physical property φi at n different temperature values; 2) determining gas composition comprising n+1 ingredients on basis of mentioned physical properties, that is to be equivalent to the given gas mixture; 3) deducing power properties of the given mixture from given known composition of the equivalent gas.

EFFECT: simplified method; higher information capacity of property definition.

12 cl, 3 dwg, 1 tbl

FIELD: mechanical engineering.

SUBSTANCE: invention can be used for estimating contamination of diesel oil with particles of soot for replacement of oil in due time. Level of oil contamination is estimated by change of intensity of optical radiation passing through optical rod owing to complete internal reflection on interface of sensitive cylindrical surface - oil. Change of intensity is measured caused both by change of absorption in layer of penetration of radiation into oil and change of refraction index of oil at increase of concentration of soot particles in oil. Optical rod is made of optical material whose refraction index of which is greater than refraction index of engine oil under testing, ratio of length of rod to its diameter being not less than 10:1. first end face of rod square to optical axis is in contact with source and receiver of optical radiation, and second end face of rod square to optical axis is provided with reflecting mirror coating. Cleaning of sensitive surface of optical element is done by means of electrostatic field. Concentration of soot particles in oil is evaluated basing on change of measured signal relative to signal received at testing of clean oil with use of calibration relationship.

EFFECT: provision of high accuracy and reliability of evaluation of contamination of diesel oil with particles and replacement of contaminated oil in due time.

11 dwg

FIELD: measuring technique.

SUBSTANCE: method comprises steps of introducing analyzed sample in measuring cell 4 placed into cryostat-provided chamber 1; turning on laser irradiator 6 and corresponding to it optical detector 7 for passing optical beam through analyzed sample; storing intensity values of light received by optical detector 7; gradually lowering temperature in chamber 1 and then again increasing it for registering curve showing change of intensity values of light received by detector 7 as temperature function. According to registered curve crystal disappearance point is determined.

EFFECT: enhanced accuracy and reliability of measurement results.

7 cl, 4 dwg

FIELD: oil industry.

SUBSTANCE: device comprises standard tank (1) transparent for visible and microwave radiation, microwave chamber (2) made of a rectangular hollow parallelepiped, source of microwave radiation (3), illuminator (4), TV camera (5), two solenoid-operated valves (6) and (7), weight pickup (8), measuring converter (9), electronic commutator (10), analogue-digital converter (11), interface (12), and computer (13). The walls of microwave chamber (2) are provided with holes (18)-(23) for introducing and recording the radiation from microwave source (3) and for filling and empting tank (1) with the crude oil. Standard tank (1) is formed by two straight hollow cylinders of different diameters. Illuminator (4) is made of a cylindrical luminescence arc-discharge lamp mounted inside the cylinder of smaller diameter so that the cylinder and standard tank are axially aligned. The cylinder is secured from outer side of bottom (17) and top (16) walls of microwave chamber (2). Solenoid-operated valves (6) and (7) are locked.

EFFECT: enhanced precision.

6 dwg

FIELD: creation of machine models, at output of which calculated data is received about properties of fluids contained in oil and gas bearing collector beds.

SUBSTANCE: method and device are used for transformation of data of pressure gradient, formation pressure and formation temperature, measured by logging device on cable, to evaluation data of PVT-properties of hydrocarbon fluid, which do not depend on presence of drill mud on hydrocarbon base, without necessary taking of physical fluid samples from the well for laboratory analysis on the surface.

EFFECT: increased statistical precision of PVT-properties of formation fluids.

5 cl, 9 dwg

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